JP2012082666A - Closing mechanism of large-sized sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically and fully close a large-sized sliding door by eliminating repulsion between the sliding door and a door frame when closing it and to lightly open the sliding door with small force when opening it.SOLUTION: When closing the sliding door, a power roller 7 energized downwards is pressurized to the rear inclination edge of a cam lever 16 to energize a logic unit 4 to the front which is a closing direction, and thus the repulsion between the sliding door and the door frame when closing it is eliminated and it is automatically and fully closed. When opening the sliding door, the power roller 7 is pushed up with the small force by the gentle inclination edge 26 of a first fixed cam plate and the sliding door is lightly opened.

Description

  The present invention relates to a novel closing mechanism (hereinafter simply referred to as a closing mechanism) for large-sized sliding doors, and in particular, can be automatically fully closed without any repulsion between the sliding door and the door frame when closed. The present invention relates to a closing mechanism that can be opened lightly with a small force when opening a sliding door.

  For example, large sliding doors, such as sliding doors in large temple halls, collide with the door frame when they are opened and closed wildly, producing large sounds and vibrations. It is no exaggeration to say that there was no concept of mechanism.

  Also, even ordinary sliding doors, such as aluminum sliding doors, that are smoothly guided by a door carriage, etc., move by hand and move lightly, so even when closing the door, there is too much momentum and even the collision with the door frame is concerned. In this case, a sliding door closing mechanism was not necessary.

  However, in recent years, the sliding doors for homes have a tendency to become thicker and heavier in order to give a sense of quality, and it is easy to predict that the sliding door will become larger and increase in weight in order to improve rigidity and strength.

  In this case, if the door is closed with a weak force, there may be a gap between the sliding door and the door frame. If the door is closed with force, a repulsion will occur between the sliding door and the door frame, and the sliding door may open due to the repulsion. Inconvenience occurs.

  Therefore, the present invention can automatically close the large sliding door without any repulsion between the sliding door and the door frame when closing the heavy sliding door, and it can be opened lightly with a small force when opening the sliding door. The object is to provide a closure mechanism that is made possible.

  In order to achieve the above-mentioned object, the invention according to claim 1 is a closing device for a sliding door that is guided by a door frame so as to be movable in the front-rear direction and moves forward when closed. A fixed power unit and a logic unit mounted on the same side as the power unit with respect to the sliding door in the vicinity of the upper side of the sliding door. The power unit is pivotally supported in a plane parallel to the sliding door surface. At the free end, a power roller pivotally supported by a first support shaft perpendicular to the sliding door surface is attached to the free end, and this power roller is attached so that it is swung out to the lower logic unit side. The biased power lever, the first locking pin provided on the power lever, and the center of the first locking pin are supported so as to be rotatable in a plane parallel to the sliding door surface. A bifurcated lever body is formed with a hook part engageable with the first locking pin at one end and an inclined edge on the outer side of the hook part and guided at the other end so as to be movable in the vertical direction. The first control lever includes a first lock lever having an upper end linked to the link, and a lock control roller rotatably attached to the lower end of the first control lever. Is a plate-like lever body having an overall shape that is substantially square-shaped, and is in a position to engage with the power roller in the prospective direction, and in an ordinary state, an angular position in which the long side portion is substantially horizontal. Thus, a second control shaft penetrating the front end portion in the plate thickness direction is pivotally supported in a plane parallel to the sliding door surface, and a first control cam having a shallow notch is formed at the upper end edge of the front end portion. Cam lever and this cam lever The lower end of the cam lever is supported in a swingable manner by a third support shaft that extends in the vertical direction below the rear end and is perpendicular to the sliding door surface. A second lock lever that can be engaged with the second locking pin that is provided so as to be able to engage from the rear, and extends in a horizontal direction in a manner that overlaps with the cam lever, with the rear end at the upper end of the second lock lever In addition to the link connection, the front end protrudes out of the logic unit so as to be able to abut against the door-to-door ridge, and overlaps with the trigger body biased forward and the cam lever, and the power in the prospective direction. A first fixed cam plate, which is a plate-like body in a position to engage with the roller, and whose upper end edge is gently connected with a long rear inclined edge and a horizontal front portion; the cam lever and the first fixed cam plate; A plate-like body disposed on the opposite side of the substrate of the logic unit with respect to the rate and in a position parallel to these, and in a position to engage with the lock control roller in the prospective direction, and its horizontal upper edge And a second fixed cam plate that drives the first control lever in the vertical direction by engaging the step with the lock control roller. When closed, the second fixed cam Push the lock control roller up by the step in front of the plate, release the power roller through the first lock lever, and press it against the inclined edge, which is the upper edge of the short side of the cam lever. Force is used to urge the sliding door in the closing direction and absorb repulsion from the door-to-door fence, while when the sliding door is completely closed, the trigger lever frees the cam lever. On the other hand, as the logic unit moves backwards when opening the sliding door, the power roller gently lifts along the gently long long sloping edge of the fixed cam plate while stepping on the cam lever that is free to rotate, and lock control When the roller falls into the stepped portion behind the upper edge of the second fixed cam plate, a wedge action is generated between the inclined end edge of the free end of the first lock lever and the first locking pin of the power lever. The first lock lever is rotated to engage the hook with the first locking pin, thereby fixing the power lever in the power unit.

  According to a second aspect of the present invention, a stopper unit is attached to the rear of the power unit of the upper frame of the door frame, a damper unit is attached to a portion of the sliding door behind the logic unit, and the stopper unit and the damper are closed when the sliding door is closed. The unit is engaged to cushion the sliding door.

  In the invention according to claim 1 and claim 2 configured as described above, the power roller in the power unit is swung out to the logic unit side just before the sliding door is closed, and the power roller mounted on the free end of the power roller is the cam lever. The sliding door is urged in the closing direction by the forward force generated by pressing the inclined edge and absorbs the repulsion from the door-to-door fence, so the sliding door is automatically and smoothly fully closed. be able to.

  Further, when the sliding door is opened, the power roller is gently lifted along the gentle and long rear inclined edge of the fixed cam plate, so that various effects such as being able to lightly open the large sliding door with a small force are obtained.

The front view which looked at the closing mechanism by one Example of this invention from the room inner side makes the ceiling board of a power unit and a logic unit transparent, and shows an open state. It is the same front view as FIG. 1, and shows the state which unlocked the power lever. It is a front view similar to FIG. 1, and shows a state where a door closing force is generated by a power lever. It is a front view similar to FIG. 1, and shows a closed state. It is the same front view as FIG. 1, and shows the state immediately after opening. It is the same front view as FIG. 1, and shows the state which locked the power lever. FIG. 2 is a front view similar to FIG. 1 and shows a state where the cam lever is being restored. The external appearance perspective view which shows the structure of the closure mechanism of Claim 2.

  In a sliding door device having a door frame and a sliding door that is guided by the door frame so as to be movable in the front-rear direction and moves forward when closed, a power unit fixed to the upper frame in front of the door frame, and the front side of the upper side of the sliding door A logic unit mounted on the same side as the power unit with respect to the sliding door in the vicinity of the eaves. The power unit is a lever body pivotally supported in a plane parallel to the sliding door surface, and the sliding door surface at the free end. This power lever is equipped with a power lever that is pivotally supported by a first support shaft that is perpendicular to the shaft and that is biased so that the power roller is swung out to the lower logic unit side. The first lock lever that locks and unlocks is controlled by the relative positional relationship between the power unit and the logic unit. On the other hand, the logic unit is a plate-shaped lever body that extends in the front-rear direction at the upper part of the logic unit and has a generally hemi-shaped plate shape, and the power roller It is in an engaged position, and in a normal state, it can be rotated in a plane parallel to the sliding door surface by a second support shaft that penetrates the front end portion in the plate thickness direction at an angular position where the long side portion is substantially horizontal A cam lever that is pivotally supported and has a first control cam formed of a shallow notch at the upper end edge of the front end portion, and a plate shape that overlaps with the cam lever and is in a position to engage with the power roller in the prospective direction And a first fixed cam plate having a long, slanted upper edge and a horizontal front portion connected to each other. When the sliding door is closed, the power lever of the power lever is closed. The sliding lever is pressed against the inclined edge of the cam lever to urge the sliding door in the closing direction, thereby absorbing the rebound of the door-to-door and the sliding door. When the sliding door is opened, the power roller is gently inclined to the first fixed cam plate. The sliding door was opened lightly by returning it by the edge.

  1, reference numeral 1 denotes a door frame of the sliding door, and reference numeral 2 denotes a sliding door guided by the door frame so as to be movable in the front-rear direction (left-right direction in FIG. 1). This sliding door moves forward (to the right in FIG. 1) when closed.

  A power unit 3 is mounted on the upper frame 5 in front of the door frame 1, and a logic unit 4 is mounted on the same side (usually indoor side) as the power unit with respect to the sliding door 2 near the upper side of the sliding door 2.

  The power unit is a lever body pivotally supported in a plane parallel to the sliding door surface, and a power roller 7 pivotally supported by a first support shaft 6 perpendicular to the sliding door surface at a free end. And a power lever 8 urged so that the power roller 7 is swung out to the lower logic unit side.

  A first locking pin 9 is provided at the free end of the power lever 8 on the back side of the power lever in FIG.

  Above the first locking pin 9, there is provided a first lock lever 11, which is a bifurcated lever body that is supported so that its central portion is rotatable in a plane parallel to the sliding door surface.

  One end (the lower end in FIGS. 1 and 4) of the first lock lever 11 is provided with a flange portion 12 that can be engaged with the first locking pin 9, and an inclined edge 13 (whichever is located outside the flange portion 12). 4 is also formed, and the other end is linked to the upper end of the first control lever 14 that is guided so as to be movable in the vertical direction.

  A lock control roller 15 is rotatably attached to the lower end of the first control lever 14 by an unnumbered support shaft perpendicular to the sliding door surface.

  On the other hand, as shown in FIG. 1, the logic unit 4 is provided with a cam lever 16 that is a plate-like lever body that extends in the front-rear direction at the upper portion thereof and has a generally hemispherical shape.

  The cam lever 16 is normally pivoted in a plane parallel to the sliding door surface by a second support shaft 17 penetrating the front end portion in the plate thickness direction at an angular position where the long side portion is substantially horizontal. It is supported.

  In addition, the cam lever 16 is disposed at a position where the cam lever 16 is engaged with the power roller 7 in the prospective direction, and a first control cam having a shallow notch is formed at the upper end edge of the front end portion.

  Below the rear end portion of the cam lever 16 is provided a second lock lever 21 that extends substantially in the vertical direction and is supported so as to be swingable by a third support shaft 19 whose lower end is perpendicular to the sliding door surface.

  The second lock lever 21 is formed at the upper end, and can be engaged with a second locking pin 22 provided at the rear end of the cam lever from the rear with a hook not shown for clarity. To face.

On the other hand, the trigger body 23 is disposed in such a manner that it overlaps with the cam lever.
As shown in FIG. 1, the trigger body 23 is a narrow plate-like body extending in the front-rear direction, the rear end is linked to the upper end of the second lock lever 21, and the front end is a door-to-door fence. It protrudes out of the logic unit so as to be able to abut, and is urged forward.

  Furthermore, a first fixed cam plate 24 is provided below the cam lever 16 in FIG. 1 so as to overlap with the cam lever.

  The first fixed cam plate 24 in the illustrated embodiment is fixed to the logic unit 4 in such a manner that it is screwed to the substrate 25 of the logic unit 4.

  The first fixed cam plate 24 is a plate-like body that is in a position to be engaged with the power roller 7 in the prospective direction, and connects the long slanted long sloping edge 26 with the horizontal front portion. It is a thing.

  Furthermore, on the front side in FIG. 1 of the first fixed cam plate 24 and the cam lever 16, a second fixed cam plate 28 that is parallel to the substrate 25 and that constitutes the outer case of the logic unit via a column is disposed. Has been.

  The second fixed cam plate 28 is a plate-like body disposed at a position that engages with the lock control roller 15 in the prospective direction, and has step portions 29 and 29 formed at predetermined two locations on the horizontal upper edge thereof. By engaging these step portions with the lock control roller 15, the first control lever 14 is driven in the vertical direction.

  In the illustrated embodiment, as shown in FIG. 1, the engagement pin 31 provided at the rear end of the cam lever is engaged with the arc groove 32 formed in the first fixed cam plate 24. Is for reducing the deflection of the cam lever in the plate thickness direction, and is not an essential component of the present invention.

  When the power unit 3 and the logic unit 4 are separated in the front-rear direction, the closing mechanism according to the embodiment of the present invention configured as described above is configured such that the first lock lever 11 is clockwise as shown in FIG. The flange portion at one end is engaged with the first locking pin 9 of the power lever 8.

Therefore, since the power roller 7 is housed in the power unit 3, the logic unit 4 and the power unit 3 do not interfere with each other, and the sliding door 2 moves lightly forward in FIG.
Further, since the upper end of the second lock lever supports the second locking pin of the cam lever from below, the cam lever 16 keeps the relative position shown in FIG. 1 stable.

  As shown in FIG. 2, when the logic unit 4 moves forward, the step 29 in front of the second fixed cam plate 28 pushes up the lock control roller 15. As a result, the first lock lever 11 rotates in the clockwise direction. The first locking pin 9 is released.

  As a result, the power roller 7 presses the horizontal portion of the cam lever 16. As shown in FIG. 2, the pressing force of the power roller 7 is applied to the second lock lever 21 via the second locking pin 22. Supported.

  When the logic unit 4 further moves forward in the closing direction, the power roller 7 rides on the inclined edge at the rear of the cam lever 16 as shown in FIG.

  As a result, a forward force of the pressing force of the power roller 7 is generated, and this force urges the sliding door in the closing direction to automatically fully close the sliding door. Absorb the repulsion.

  When the sliding door is closed, as shown in FIG. 4, the power roller 7 rides on the rear end of the cam lever 16, and the front end of the trigger body 23 hits the door stop rod 33 and moves backward by the reaction force. The upper end of the second lock lever 21 and the second locking pin 22 are disengaged, and the cam lever 16 becomes free.

  On the other hand, when the sliding door is moved slightly in the direction of opening the sliding door after the sliding door is fully closed, that is, as shown in FIG. 5, the power roller 7 steps on the cam lever 16 along the inclined edge 26 of the first fixed cam plate 24. To rise.

  In other words, the power lever 8 is rotated in the clockwise direction by a wedge action generated between the power lever 8 and the gently inclined edge 26.

  Since the power lever 8 is rotated by the moment amplified by the gentle inclined edge, the force required to start opening the sliding door is small. In other words, the sliding door can be opened lightly.

  When the logic unit 4 moves further rearward, as shown in FIG. 6, the first locking pin 9 engages with the flange portion of the first lock lever 11 and the power lever 8 is locked.

  When the sliding door is further opened and the logic unit 4 moves further rearward, the power roller 7 engages with the first control cam 18 (see FIGS. 1 and 5) and steps on the power roller 7, as shown in FIG. As a result, the cam lever 16 rotates clockwise around the second support shaft 17, and the second locking pin 22 is locked to the upper end of the second lock lever 21 in the middle, and finally the state shown in FIG. 1 is reached. .

  In FIG. 7, reference numeral 34 denotes a safety lever. The safety lever 34 pushes the trigger body 23 backward when the sliding door is open as shown in FIG. 2 Even when the engagement with the locking pin 22 is released, the cam lever 16 is fixed to facilitate the subsequent operation and is not an indispensable component of the present invention. To do.

  FIG. 8 shows another embodiment of the present invention as set forth in claim 2, which is configured so that when the sliding door is closed, the sliding door is buffered at a predetermined position and decelerated so that the sliding door is closed gently. It is configured.

  That is, in FIG. 8, reference numeral 35 denotes a damper unit, and this damper unit 35 is attached to a sliding door behind the logic unit 4.

  A damper 36 such as an oil damper is accommodated in the damper unit 35, and the oil damper 36 in the illustrated embodiment is structured to be buffered by pushing the shaft into the cylinder.

  A damper arm 37 is supported on the rear of the damper unit 35 by an arm shaft 38 so as to be swingable.

  A coupler 39 is attached to the tip of the shaft of the oil damper 36. The coupler 39 penetrates in the prospective direction of the sliding door, and one end of the damper arm 37 is placed in the prospective direction in an engagement hole (not shown) long in the vertical direction. An engaging pin 31 penetrating the shaft is loosely fitted.

  On the other hand, a stopper unit 42 having a cam surface is fixed to the rear portion of the upper frame 5 of the door frame from the power unit 3.

  With the above-described configuration, the stopper unit 42 drives the oil damper 36 via the damper arm at a predetermined position when the sliding door is closed, and thus the sliding door is buffered.

DESCRIPTION OF SYMBOLS 1 Door frame 2 Sliding door 3 Power unit 4 Logic unit 5 Upper frame 6 1st spindle 7 Power roller 8 Power lever 9 1st locking pin 11 1st lock lever 12 Eaves part 13 Inclined edge 14 1st control lever 15 Lock control Roller 16 Cam lever 17 Second support shaft 18 First control cam 19 Third support shaft 21 Second lock lever 22 Second locking pin 23 Trigger body 24 First fixed cam plate 25 Substrate 26 Inclined edge 27 Horizontal portion 28 Second fixed Cam plate 29 Step part 31 Engagement pin 32 Arc groove 33 Door stopper 34 Safety lever 35 Damper unit 36 Oil damper 37 Damper arm 38 Arm shaft 39 Coupler 42 Stopper unit

Claims (2)

In a closing device for a sliding door that is guided by the door frame so as to be movable in the front-rear direction and moves forward when closed, the power unit fixed to the upper frame in front of the door frame, and the sliding door And a logic unit mounted on the same side as the power unit. The power unit is a lever body pivotally supported in a plane parallel to the sliding door surface and has a first support perpendicular to the sliding door surface at the free end. A power roller that is pivotally supported by a shaft is mounted, and a power lever that is urged so that the power roller is swung out to the lower logic unit side, and a first that is provided on the power lever. A locking pin and a bifurcated lever body supported so as to be rotatable in a plane parallel to the sliding door surface above the first locking pin and engageable with the first locking pin at one end. And a first lock lever having an inclined end edge formed on the outer side of the flange, and an upper end of a first control lever guided so as to be movable in the vertical direction at the other end. 1 is provided with a lock control roller rotatably attached to the lower end of the control lever. On the other hand, the logic unit extends in the front-rear direction at the upper part thereof, and is a plate-like lever having a generally U-shape. The body is in a position that engages with the power roller in the prospective direction, and in a normal state, the second support shaft that penetrates the front end portion in the plate thickness direction at an angular position where the long side portion is substantially horizontal, A cam lever that is pivotally supported in a plane parallel to the sliding door surface and has a first control cam formed of a shallow notch at the upper edge of the front end portion, and extends substantially vertically below the rear end portion of the cam lever. Present, the lower end It is supported by a third support shaft perpendicular to the door surface so as to be swingable, and a collar formed at the upper end can be engaged with a second locking pin provided at the rear end of the cam lever from behind. The second lock lever that faces and extends in the horizontal direction in a manner that overlaps with the cam lever, the rear end is linked to the upper end of the second lock lever, and the front end can be abutted against the door stop It is a plate-like body that protrudes out of the logic unit and is biased forward, and overlaps with the cam lever and is engaged with the power roller in the prospective direction. A first fixed cam plate having a gentle and long rear inclined edge and a horizontal front portion connected to each other, and the cam lever and the first fixed cam plate on the opposite side of the logic unit board; In addition, a plate-like body disposed at a position parallel to these and at a position that engages with the lock control roller in the prospective direction, a step is formed at the horizontal upper edge of the plate. A second fixed cam plate that drives the first control lever in the vertical direction by being engaged with the lock control roller, and when closed, the lock control roller is moved by a step in front of the second fixed cam plate. Pushing up, releasing the power roller through the first lock lever, and urging the sliding door in the closing direction by the forward force generated by pressing it against the inclined edge which is the upper edge of the short side of the cam lever, Also, it absorbs the repulsion from the door-to-door fence, while when the sliding door is completely closed, the trigger lever frees the cam lever, while the rear of the logic unit when opening the sliding door The power roller gently lifts along the gently sloping long rear sloping edge of the fixed cam plate while stepping on the cam lever that is free to rotate, and the lock control roller moves behind the upper edge of the second fixed cam plate. When the first lock lever falls into the stepped portion, the first lock lever is rotated by the wedge action generated between the inclined end edge of the free end of the first lock lever and the first locking pin of the power lever. A large sliding door closing mechanism characterized in that the portion is engaged with the first locking pin, so that the power lever is fixed in the power unit.   A stopper unit is mounted on the rear side of the power unit on the upper frame of the door frame, and a damper unit is mounted on the sliding door portion behind the logic unit. When the sliding door is closed, the stopper unit and the damper unit are engaged to cushion the sliding door. The large-sized sliding door closing mechanism according to claim 1, which is configured as described above.

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